The evening hours when television viewership is highest, typically from 8-11 PM, when networks broadcast their most popular and expensive programs.
Compound of 'prime' (from Latin 'primus' meaning first or best) and 'time'. The term emerged in the 1940s-50s with the rise of television broadcasting, when networks discovered that certain evening hours commanded the largest audiences and highest advertising rates.
Primetime represents the democratic nature of mass media - it's the few hours each day when the entire nation essentially gathers around the electronic campfire, sharing the same stories and experiences. The concept has shaped not just television but American culture itself, creating shared references and collective memories.
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